Home / 13,250.28-18,285.18-7,281.82

Finding the Fourth Proportional to 13,250.28, 18,285.18 and 7,281.82

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Solution

The fourth proportional to 13,250.28, 18,285.18 and 7,281.82 is: 10,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.28 : 18,285.18 = 7,281.82 : x
  2. Step 2: Convert to fraction form
    13,250.28/18,285.18 = 7,281.82/x
  3. Step 3: Cross multiply
    13,250.28x = 18,285.18 × 7,281.82
  4. Step 4: Simplify right side
    13,250.28x = 133,149,384.98
  5. Step 5: Solve for x
    x = 133,149,384.98/13,250.28
  6. Step 6: Final answer
    x = 10,048.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.